This spell, and the other two versions of it (Form of Chilled Bone lvl 16, and Form of Mottled Bone lvl 56), are found on Undertaker Schell in Blightfire at the crossroad camp. Bleached Bone ran me 15pp 7g 4s 9c at 202 Cha.
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Priestess Cathartic Soulgriever, Priestess of the 75th Salvation Kayotik Phantasmagorya, Deathcaller of the 78th Desecration Fateseer Tymeless Bloodsacrifice, Oracle of the 69th Ritual
~Let honor be your sword, your shield and your cloak; let the proud save face and you will go far~